Home / 28,777.70-39,713.30-16,680.52

Finding the Fourth Proportional to 28,777.70, 39,713.30 and 16,680.52

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Solution

The fourth proportional to 28,777.70, 39,713.30 and 16,680.52 is: 23,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.70 : 39,713.30 = 16,680.52 : x
  2. Step 2: Convert to fraction form
    28,777.70/39,713.30 = 16,680.52/x
  3. Step 3: Cross multiply
    28,777.70x = 39,713.30 × 16,680.52
  4. Step 4: Simplify right side
    28,777.70x = 662,438,523.71
  5. Step 5: Solve for x
    x = 662,438,523.71/28,777.70
  6. Step 6: Final answer
    x = 23,019.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.